Top-rated generator install pros.

Get matched with top generator install pros in Herculaneum, MO

Enter your zip and get matched with up to 5 pros

Need a pro for your generator install project in Herculaneum, MO?

Select your specific project to find the pro for you.

Verified Reviews for Generator Install pros in Herculaneum, MO

*The Angi rating for Generator Install companies in Herculaneum, MO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

*The HomeAdvisor rating for Generator Install companies in Herculaneum, MO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

Last update on June 16, 2026

Find Generator install pros in Herculaneum

Avatar for Power Up Electrical Contractors, LLC
Power Up Electrical Contractors, LLC
4.5(
19
)

Serving Herculaneum, MO and surrounding areas

Approved

Super Service Award Winner

In business since 2011

Free estimates

Emergency services offered

"It went great, I was selling my house and some electrical work was needed after the inspector flagged some things and closing date was coming quick. I got a hold of Jeff and he came to the house and said no problem we can take care of it. Very happy with the work that was done."
27 neighbors recently requested a quote
Recommended by82%of homeowners
Request Quote
Avatar for VMK Remodeling
VMK Remodeling
4.2(
19
)

Serving Herculaneum, MO and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Warranties offered

"Vinc came and gave estimate and was very professional. The original job turned into a bigger job and he handled that very well. He was upfront with us on any changes in cost and completed the project professionally and skillfully."
Response time2 days
Response rate90%
66 neighbors recently requested a quote
Request Quote
Avatar for Lifestyle Contracting, LLC
Lifestyle Contracting, LLC
New to Angi

Serving Herculaneum, MO and surrounding areas

Approved

In business since 2023

Offers commercial services

Lifestyle Contracting is an estimating and management company for sub contractors in the St. Louis and surrounding areas. Specializing in residential and commercial electrical services, we’ve teamed up with Pace Electric to offer the best in the industry. Let us help you to understand your home or businesses electrical system and assist in any installation.

Response time1 day
Request Quote
Avatar for Shinnova Power
Shinnova Power
New to Angi

Serving Herculaneum, MO and surrounding areas

Approved (Corporate)

In business since 2024

Free estimates

Emergency services offered

Shinnova Power is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

Response time1 day
Response rate100%
20 neighbors recently requested a quote
Request Quote
Avatar for Grasser Electric
Grasser Electric
4.6(
30
)

Serving Herculaneum, MO and surrounding areas

In business since 1975

Free estimates

Emergency services offered

"I had a great experience with them. Their bid was right in the middle where it should have been. The guy who showed up had estimated for 5-6 hours worth of work, and he ended up staying here for almost 9 hours, but they didn't charge me extra for it, and I was happy about that. He was able to run the wiring where I wanted it to run. There weren't all the cables showing and he was able to stick it through my wall, and that is why he ended up staying here for so long. I was really happy with the service. My biggest thing was that the guy stayed until the work was done, he didn't say he would come tomorrow even if it meant working overtime."
.
.
Recommended by92%of homeowners
Request Quote
Avatar for SCF Services LLC
SCF Services LLC
5.0(
12
)

Serving Herculaneum, MO and surrounding areas

In business since 2025

Credit card accepted

Offers commercial services

"I have had Eric do many projects for me from wiring a new garage to running circuits for my camper and welding equipment and also my wife’s kiln for pottery. He also put in several generator setups for several houses Also put in a bunch of can lights in our house Eric is efficient and reasonable in price also is very neat in your home and honest I would highly recommend using him for your projects for home and business"
My jobs
My jobs
My jobs
My jobs
My jobs

+6

Response time10 hrs
Request Quote
Showing 1-10 of 27
Generator Install questions, answered by experts

In many cases, yes. There are models called dual-fuel generators and fuel switches, but only between certain types of fuel. For example, with the right setup you can convert a generator from natural gas to propane. Some allow switching between diesel and gasoline. There are even tri-fuel generators available in some cases, which adds a large layer of security if you are worried about fuel availability in times of crisis. Always check your generator capabilities and manual instructions before trying to switch fuels. Some generators can use another fuel but may need a fuel conversion kit to prep them first.

A 1,500 square foot home will likely need a 15kW to 20kW generator. When deciding on whole-house generator size, add up the total wattage of the devices that you’d like to continue running during a power outage. That way, you can ensure you purchase a generator that can power your necessary appliances or medical equipment during an electrical emergency.

To reduce AC startup power for a whole-house generator, install a soft start kit or hard start capacitor, which lowers the initial surge by gradually ramping up the compressor. Using a smart load manager can also help by staggering startup loads, preventing a system overload and future costly repairs.

While the rating will tell you how many watts the refrigerator needs at the peak of its cycle, it requires additional wattage to start. At the bare minimum, you’ll need a 1,500-watt generator to get the fridge up and running after a blackout. A 2,000-watt generator should be sufficient for most home refrigerators.

The cost to install a whole-house generator averages $5,200, with a typical price range of $1,500 to $8,900. However, total costs can vary from $400 for a small portable unit to over $18,000 for a large-capacity system. The most significant cost factor is the generator's size and capacity, but other variables include the brand, fuel type, and labor for assembly and installation.

Generator costs can be broken down by type:

  • Portable or Emergency Backup Generators (1kW–7.5kW): $500 to $2,000

  • Partial-Home Generators (9kW–20kW): $2,000 to $6,500

  • Whole-House Generators (22kW–48kW): $5,000 to $18,000

To avoid paying for more power than you need, consider hiring an electrician to calculate the electrical load for your essential appliances. It is also recommended to get at least three quotes to find the best deal for your specific needs and budget.

The Herculaneum, MO homeowners’ guide to generator installs

From average costs to expert advice, get all the answers you need to get your job done.

See all articles